Re: Trouble plotting BSpline

*To*: mathgroup at smc.vnet.net*Subject*: [mg126314] Re: Trouble plotting BSpline*From*: Bob Hanlon <hanlonr357 at gmail.com>*Date*: Mon, 30 Apr 2012 04:43:22 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201204290608.CAA10803@smc.vnet.net>

sdid = { {10000, 0.082925792}, {15000, 0.134594939}, {20000, 0.172655752}, {25000, 0.215181799}, {30000, 0.291941314}, {35000, 0.380820753}, {40000, 0.457367638}, {45000, 0.510312566}, {50000, 0.553051244}, {60000, 0.638103338}, {75000, 0.761428875}, {100000, 0.902615352}, {125000, 0.942802467}, {150000, 0.971082288}, {200000, 0.989368488}}; cdfspline = BSplineFunction[sdid]; ParametricPlot[cdfspline[t], {t, 0, 1}, AspectRatio -> 1, Epilog -> {AbsolutePointSize[3], Red, Point[sdid]}] Bob Hanlon On Sun, Apr 29, 2012 at 2:08 AM, paul <paulvonhippel at yahoo.com> wrote: > I am having trouble plotting a BSpline. I fit the spline to data where y runs from 0 to 1, but when I try to plot the spline I see no curve, and I can't get the vertical axis to go above 0.15. I'm sure what I'm missing is simple. Many thanks for any corrections. > > In[1]:= sdid = {{10000, 0.082925792}, > {15000, 0.134594939}, > {20000, 0.172655752}, > {25000, 0.215181799}, > {30000, 0.291941314}, > {35000, 0.380820753}, > {40000, 0.457367638}, > {45000, 0.510312566}, > {50000, 0.553051244}, > {60000, 0.638103338}, > {75000, 0.761428875}, > {100000, 0.902615352}, > {125000, 0.942802467}, > {150000, 0.971082288}, > {200000, 0.989368488}} > > In[2]:= cdfspline = BSplineFunction[sdid] > In[3]:= ParametricPlot[cdfspline[x], {x, 0, 2000000}, {y, 0, 10}, AspectRatio -> 1] >

**References**:**Trouble plotting BSpline***From:*paul <paulvonhippel@yahoo.com>